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A general search for new phenomena in ep scattering at HERA.

H1 Collaboration, The and Henderson, Rob C. W. and Sloan, T. and Aktas, A. (2004) A general search for new phenomena in ep scattering at HERA. Physics Letters B, 602 (1-2). pp. 14-30. ISSN 0370-2693

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Abstract

A model-independent search for deviations from the Standard Model prediction is performed in e+p and e−p collisions at HERA using H1 data corresponding to an integrated luminosity of 117 pb−1. For the first time all event topologies involving isolated electrons, photons, muons, neutrinos and jets with high transverse momenta are investigated in a single analysis. Events are assigned to exclusive classes according to their final state. A statistical algorithm is developed to search for deviations from the Standard Model in the distributions of the scalar sum of transverse momenta or invariant mass of final state particles and to quantify their significance. A good agreement with the Standard Model prediction is observed in most of the event classes. The most significant deviation is found for a topology containing an isolated muon, missing transverse momentum and a jet, consistent with a previously reported observation.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23986
Deposited By: ep_ss_importer
Deposited On: 25 Feb 2009 11:02
Refereed?: Yes
Published?: Published
Last Modified: 10 Jun 2013 15:51
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23986

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